- var_dump: documentation ( source)
- str_pad: documentation ( source)
<?php
$mockCliente = array(
'pf' => array (
'cpf' => '8028098711',
'nome' => 'Caio César'
)
);
$padleftcount = 11 - strlen($mockCliente['pf']['cpf']);
$mockCliente['pf']['cpf'] = str_pad($mockCliente['pf']['cpf'], $padleftcount, '0', STR_PAD_LEFT);
var_dump($mockCliente);